pem_all.c revision 296465 
1/* crypto/pem/pem_all.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58/* ====================================================================
59 * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 *    notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 *    notice, this list of conditions and the following disclaimer in
70 *    the documentation and/or other materials provided with the
71 *    distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 *    software must display the following acknowledgment:
75 *    "This product includes software developed by the OpenSSL Project
76 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 *    endorse or promote products derived from this software without
80 *    prior written permission. For written permission, please contact
81 *    openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 *    nor may "OpenSSL" appear in their names without prior written
85 *    permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 *    acknowledgment:
89 *    "This product includes software developed by the OpenSSL Project
90 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com).  This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111
112#include <stdio.h>
113#undef SSLEAY_MACROS
114#include "cryptlib.h"
115#include <openssl/bio.h>
116#include <openssl/evp.h>
117#include <openssl/x509.h>
118#include <openssl/pkcs7.h>
119#include <openssl/pem.h>
120#ifndef OPENSSL_NO_RSA
121# include <openssl/rsa.h>
122#endif
123#ifndef OPENSSL_NO_DSA
124# include <openssl/dsa.h>
125#endif
126#ifndef OPENSSL_NO_DH
127# include <openssl/dh.h>
128#endif
129
130#ifndef OPENSSL_NO_RSA
131static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa);
132#endif
133#ifndef OPENSSL_NO_DSA
134static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa);
135#endif
136
137#ifndef OPENSSL_NO_EC
138static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey);
139#endif
140
141IMPLEMENT_PEM_rw(X509_REQ, X509_REQ, PEM_STRING_X509_REQ, X509_REQ)
142
143IMPLEMENT_PEM_write(X509_REQ_NEW, X509_REQ, PEM_STRING_X509_REQ_OLD, X509_REQ)
144IMPLEMENT_PEM_rw(X509_CRL, X509_CRL, PEM_STRING_X509_CRL, X509_CRL)
145IMPLEMENT_PEM_rw(PKCS7, PKCS7, PEM_STRING_PKCS7, PKCS7)
146
147IMPLEMENT_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE,
148                 PEM_STRING_X509, NETSCAPE_CERT_SEQUENCE)
149#ifndef OPENSSL_NO_RSA
150/*
151 * We treat RSA or DSA private keys as a special case. For private keys we
152 * read in an EVP_PKEY structure with PEM_read_bio_PrivateKey() and extract
153 * the relevant private key: this means can handle "traditional" and PKCS#8
154 * formats transparently.
155 */
156static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa)
157{
158    RSA *rtmp;
159    if (!key)
160        return NULL;
161    rtmp = EVP_PKEY_get1_RSA(key);
162    EVP_PKEY_free(key);
163    if (!rtmp)
164        return NULL;
165    if (rsa) {
166        RSA_free(*rsa);
167        *rsa = rtmp;
168    }
169    return rtmp;
170}
171
172RSA *PEM_read_bio_RSAPrivateKey(BIO *bp, RSA **rsa, pem_password_cb *cb,
173                                void *u)
174{
175    EVP_PKEY *pktmp;
176    pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
177    return pkey_get_rsa(pktmp, rsa);
178}
179
180# ifndef OPENSSL_NO_FP_API
181
182RSA *PEM_read_RSAPrivateKey(FILE *fp, RSA **rsa, pem_password_cb *cb, void *u)
183{
184    EVP_PKEY *pktmp;
185    pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
186    return pkey_get_rsa(pktmp, rsa);
187}
188
189# endif
190
191# ifdef OPENSSL_FIPS
192
193int PEM_write_bio_RSAPrivateKey(BIO *bp, RSA *x, const EVP_CIPHER *enc,
194                                unsigned char *kstr, int klen,
195                                pem_password_cb *cb, void *u)
196{
197    EVP_PKEY *k;
198    int ret;
199    k = EVP_PKEY_new();
200    if (!k)
201        return 0;
202    EVP_PKEY_set1_RSA(k, x);
203
204    ret = PEM_write_bio_PrivateKey(bp, k, enc, kstr, klen, cb, u);
205    EVP_PKEY_free(k);
206    return ret;
207}
208
209#  ifndef OPENSSL_NO_FP_API
210int PEM_write_RSAPrivateKey(FILE *fp, RSA *x, const EVP_CIPHER *enc,
211                            unsigned char *kstr, int klen,
212                            pem_password_cb *cb, void *u)
213{
214    EVP_PKEY *k;
215    int ret;
216    k = EVP_PKEY_new();
217    if (!k)
218        return 0;
219
220    EVP_PKEY_set1_RSA(k, x);
221
222    ret = PEM_write_PrivateKey(fp, k, enc, kstr, klen, cb, u);
223    EVP_PKEY_free(k);
224    return ret;
225}
226#  endif
227
228# else
229
230IMPLEMENT_PEM_write_cb_const(RSAPrivateKey, RSA, PEM_STRING_RSA,
231                             RSAPrivateKey)
232# endif
233IMPLEMENT_PEM_rw_const(RSAPublicKey, RSA, PEM_STRING_RSA_PUBLIC,
234                       RSAPublicKey) IMPLEMENT_PEM_rw(RSA_PUBKEY, RSA,
235                                                      PEM_STRING_PUBLIC,
236                                                      RSA_PUBKEY)
237#endif
238#ifndef OPENSSL_NO_DSA
239static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa)
240{
241    DSA *dtmp;
242    if (!key)
243        return NULL;
244    dtmp = EVP_PKEY_get1_DSA(key);
245    EVP_PKEY_free(key);
246    if (!dtmp)
247        return NULL;
248    if (dsa) {
249        DSA_free(*dsa);
250        *dsa = dtmp;
251    }
252    return dtmp;
253}
254
255DSA *PEM_read_bio_DSAPrivateKey(BIO *bp, DSA **dsa, pem_password_cb *cb,
256                                void *u)
257{
258    EVP_PKEY *pktmp;
259    pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
260    return pkey_get_dsa(pktmp, dsa);
261}
262
263# ifdef OPENSSL_FIPS
264
265int PEM_write_bio_DSAPrivateKey(BIO *bp, DSA *x, const EVP_CIPHER *enc,
266                                unsigned char *kstr, int klen,
267                                pem_password_cb *cb, void *u)
268{
269    EVP_PKEY *k;
270    int ret;
271    k = EVP_PKEY_new();
272    if (!k)
273        return 0;
274    EVP_PKEY_set1_DSA(k, x);
275
276    ret = PEM_write_bio_PrivateKey(bp, k, enc, kstr, klen, cb, u);
277    EVP_PKEY_free(k);
278    return ret;
279}
280
281#  ifndef OPENSSL_NO_FP_API
282int PEM_write_DSAPrivateKey(FILE *fp, DSA *x, const EVP_CIPHER *enc,
283                            unsigned char *kstr, int klen,
284                            pem_password_cb *cb, void *u)
285{
286    EVP_PKEY *k;
287    int ret;
288    k = EVP_PKEY_new();
289    if (!k)
290        return 0;
291    EVP_PKEY_set1_DSA(k, x);
292    ret = PEM_write_PrivateKey(fp, k, enc, kstr, klen, cb, u);
293    EVP_PKEY_free(k);
294    return ret;
295}
296#  endif
297
298# else
299
300IMPLEMENT_PEM_write_cb_const(DSAPrivateKey, DSA, PEM_STRING_DSA,
301                             DSAPrivateKey)
302# endif
303    IMPLEMENT_PEM_rw(DSA_PUBKEY, DSA, PEM_STRING_PUBLIC, DSA_PUBKEY)
304# ifndef OPENSSL_NO_FP_API
305DSA *PEM_read_DSAPrivateKey(FILE *fp, DSA **dsa, pem_password_cb *cb, void *u)
306{
307    EVP_PKEY *pktmp;
308    pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
309    return pkey_get_dsa(pktmp, dsa);
310}
311
312# endif
313
314IMPLEMENT_PEM_rw_const(DSAparams, DSA, PEM_STRING_DSAPARAMS, DSAparams)
315#endif
316#ifndef OPENSSL_NO_EC
317static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey)
318{
319    EC_KEY *dtmp;
320    if (!key)
321        return NULL;
322    dtmp = EVP_PKEY_get1_EC_KEY(key);
323    EVP_PKEY_free(key);
324    if (!dtmp)
325        return NULL;
326    if (eckey) {
327        EC_KEY_free(*eckey);
328        *eckey = dtmp;
329    }
330    return dtmp;
331}
332
333EC_KEY *PEM_read_bio_ECPrivateKey(BIO *bp, EC_KEY **key, pem_password_cb *cb,
334                                  void *u)
335{
336    EVP_PKEY *pktmp;
337    pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
338    return pkey_get_eckey(pktmp, key);
339}
340
341IMPLEMENT_PEM_rw_const(ECPKParameters, EC_GROUP, PEM_STRING_ECPARAMETERS,
342                       ECPKParameters)
343# ifdef OPENSSL_FIPS
344int PEM_write_bio_ECPrivateKey(BIO *bp, EC_KEY *x, const EVP_CIPHER *enc,
345                               unsigned char *kstr, int klen,
346                               pem_password_cb *cb, void *u)
347{
348    EVP_PKEY *k;
349    int ret;
350    k = EVP_PKEY_new();
351    if (!k)
352        return 0;
353    EVP_PKEY_set1_EC_KEY(k, x);
354
355    ret = PEM_write_bio_PrivateKey(bp, k, enc, kstr, klen, cb, u);
356    EVP_PKEY_free(k);
357    return ret;
358}
359
360#  ifndef OPENSSL_NO_FP_API
361int PEM_write_ECPrivateKey(FILE *fp, EC_KEY *x, const EVP_CIPHER *enc,
362                           unsigned char *kstr, int klen,
363                           pem_password_cb *cb, void *u)
364{
365    EVP_PKEY *k;
366    int ret;
367    k = EVP_PKEY_new();
368    if (!k)
369        return 0;
370    EVP_PKEY_set1_EC_KEY(k, x);
371    ret = PEM_write_PrivateKey(fp, k, enc, kstr, klen, cb, u);
372    EVP_PKEY_free(k);
373    return ret;
374}
375#  endif
376
377# else
378    IMPLEMENT_PEM_write_cb(ECPrivateKey, EC_KEY, PEM_STRING_ECPRIVATEKEY,
379                       ECPrivateKey)
380# endif
381IMPLEMENT_PEM_rw(EC_PUBKEY, EC_KEY, PEM_STRING_PUBLIC, EC_PUBKEY)
382# ifndef OPENSSL_NO_FP_API
383EC_KEY *PEM_read_ECPrivateKey(FILE *fp, EC_KEY **eckey, pem_password_cb *cb,
384                              void *u)
385{
386    EVP_PKEY *pktmp;
387    pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
388    return pkey_get_eckey(pktmp, eckey);
389}
390
391# endif
392
393#endif
394
395#ifndef OPENSSL_NO_DH
396
397IMPLEMENT_PEM_rw_const(DHparams, DH, PEM_STRING_DHPARAMS, DHparams)
398#endif
399/*-
400 * The PrivateKey case is not that straightforward.
401 *   IMPLEMENT_PEM_rw_cb(PrivateKey, EVP_PKEY, PEM_STRING_EVP_PKEY, PrivateKey)
402 * does not work, RSA and DSA keys have specific strings.
403 * (When reading, parameter PEM_STRING_EVP_PKEY is a wildcard for anything
404 * appropriate.)
405 */
406#ifdef OPENSSL_FIPS
407static const char *pkey_str(EVP_PKEY *x)
408{
409    switch (x->type) {
410    case EVP_PKEY_RSA:
411        return PEM_STRING_RSA;
412
413    case EVP_PKEY_DSA:
414        return PEM_STRING_DSA;
415
416    case EVP_PKEY_EC:
417        return PEM_STRING_ECPRIVATEKEY;
418
419    default:
420        return NULL;
421    }
422}
423
424int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
425                             unsigned char *kstr, int klen,
426                             pem_password_cb *cb, void *u)
427{
428    if (FIPS_mode())
429        return PEM_write_bio_PKCS8PrivateKey(bp, x, enc,
430                                             (char *)kstr, klen, cb, u);
431    else
432        return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
433                                  pkey_str(x), bp, (char *)x, enc, kstr, klen,
434                                  cb, u);
435}
436
437# ifndef OPENSSL_NO_FP_API
438int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
439                         unsigned char *kstr, int klen,
440                         pem_password_cb *cb, void *u)
441{
442    if (FIPS_mode())
443        return PEM_write_PKCS8PrivateKey(fp, x, enc,
444                                         (char *)kstr, klen, cb, u);
445    else
446        return PEM_ASN1_write((i2d_of_void *)i2d_PrivateKey,
447                              pkey_str(x), fp, (char *)x, enc, kstr, klen, cb,
448                              u);
449}
450# endif
451
452#else
453IMPLEMENT_PEM_write_cb(PrivateKey, EVP_PKEY,
454                       ((x->type ==
455                         EVP_PKEY_DSA) ? PEM_STRING_DSA : (x->type ==
456                                                           EVP_PKEY_RSA) ?
457                        PEM_STRING_RSA : PEM_STRING_ECPRIVATEKEY), PrivateKey)
458#endif
459    IMPLEMENT_PEM_rw(PUBKEY, EVP_PKEY, PEM_STRING_PUBLIC, PUBKEY)
460